Installation of my connected product

• Is EASYKIT Wifi With Netatmo compatible with other brands products?
• Is the EASYKIT Wifi With Netatmo video door phone compatible with other Bticino 2-wire products?
• Is it possible install 100x and finish the commissioning without internet connection?
• Is EASYKIT Wifi With Netatmo compatible with other BTicino old wiring technologies?
• Is it possible install EASYKIT Wifi With Netatmo and finish the commissioning without internet connection?